The physiological effects of salmon lice infection on post-smolt of Atlantic salmon
The physiological effects of salmon lice infection on post-smolt of Atlantic salmon
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DOI：
10.1111/j.1095-8649.1996.tb01813.x
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发表时间：
1996-06-01
影响因子：
2
通讯作者：
Jakobsen, PJ
中科院分区：
文献类型：
--
作者：
Grimnes, A;Jakobsen, PJ
通过用感染的桡足类感染孵化场，研究了鲑鱼虱子感染对大西洋鲑鱼闻后的生理影响。即使在高感染强度下，从每条鱼30-250条虱子，早期合并器阶段也不会对鱼产生严重的生理影响。在出现成体前I期后，鱼的死亡率突然增加。然后，受感染的鱼因病变和渗透调节失败而遭受痛苦。与未感染鱼相比，感染鱼血浆氯水平显著升高，总蛋白、白蛋白和红细胞压积显著降低。在成体虱子出现之前，所有被感染的鱼都死了。因此，感染强度在每条鱼30条以上的鲑鱼虱子幼虫似乎会导致大西洋鲑鱼在虱子达到成体前阶段后不久死亡。(C)1996年不列颠群岛渔业协会
The physiological effects of salmon lice infections on post-smelt of Atlantic salmon were examined by experimentally infecting hatchery reared post-smelts with infective copepodids. Even at high infection intensities, ranging from 30-250 lice per fish, early chalimus stages did not have severe, physiological effects on the fish. There was a sudden increase in fish mortality after the appearance of preadult I stages. Infected fish were then suffering due to lesions and osmoregulatory failure. Plasma chloride level increased significantly and total protein, albumin and haematocrit decreased significantly in infected compared to uninfected fish. All infected fish became moribund before adult lice appeared. Infection intensities above 30 salmon lice larvae per fish thus appear to cause death of Atlantic salmon post-smelt soon after the lice reach their pre-adult stage. (C) 1996 The Fisheries Society of the British Isles